/* ==========================================================
   A3 · 论文AIGC风险自查 —— 「送审档案袋」设计系统
   象牙纸 + 藏青 + 朱红印章；衬线标题、双线边框、表格式编号、
   半圆仪表与纸张纹理。与 A1 雷达风 / A2 终端风完全区隔。
   ========================================================== */
.tar-page, .tar-modal, .tar-toast {
    --tar-bg: #fbf8f1;
    --tar-card: #fffdf8;
    --tar-card2: #f6f1e6;
    --tar-ink: #22283a;
    --tar-ink2: #4f5567;
    --tar-ink3: #8b8b8a;
    --tar-navy: #1e3a5f;
    --tar-navy-soft: #e7edf5;
    --tar-red: #b3261e;
    --tar-red-soft: #f8e9e5;
    --tar-gold: #9a7426;
    --tar-green: #2f6d52;
    --tar-line: #d9d0bd;
    --tar-line2: #eae2d2;
    --tar-shadow: 0 2px 0 rgba(80, 66, 40, .07), 0 12px 30px rgba(80, 66, 40, .08);
    --tar-serif: Georgia, "Songti SC", "SimSun", "STSong", serif;
    --tar-sans: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}
:root[data-theme="dark"] .tar-page,
:root[data-theme="dark"] .tar-modal,
:root[data-theme="dark"] .tar-toast {
    --tar-bg: #14161b;
    --tar-card: #1e2128;
    --tar-card2: #262a33;
    --tar-ink: #f0ece3;
    --tar-ink2: #bcb9b1;
    --tar-ink3: #8e8c86;
    --tar-navy: #89b1e0;
    --tar-navy-soft: #22304a;
    --tar-red: #f08b80;
    --tar-red-soft: #3a2323;
    --tar-gold: #d9b063;
    --tar-green: #79c8a2;
    --tar-line: #3c4049;
    --tar-line2: #2e323a;
    --tar-shadow: 0 2px 0 rgba(0, 0, 0, .3), 0 12px 30px rgba(0, 0, 0, .36);
}

.tar-page {
    background: var(--tar-bg); color: var(--tar-ink);
    font-family: var(--tar-sans); font-size: 14.5px; line-height: 1.9;
    padding: 26px 0 56px; min-height: 60vh;
    background-image: radial-gradient(circle at 12% 8%, rgba(30, 58, 95, .045), transparent 30%);
}
.tar-wrap { max-width: 1200px; margin: 0 auto; padding: 0 22px; }
.tar-page b, .tar-page strong { font-weight: 700; color: var(--tar-red); }
.tar-page h1, .tar-page h2, .tar-page h3 { font-family: var(--tar-serif); line-height: 1.4; letter-spacing: .01em; }
.tar-page .detail-breadcrumb { background: transparent; margin-bottom: 20px; font-size: 12.5px; }

/* ---------- 首屏 ---------- */
.tar-hero { display: grid; grid-template-columns: minmax(0, 1.14fr) minmax(0, .86fr); gap: 0; border: 1px solid var(--tar-line); box-shadow: var(--tar-shadow); background: var(--tar-card); }
.tar-hero-copy { padding: 30px 32px 26px; border-right: 1px double var(--tar-line); }
.tar-kicker { display: inline-block; font: 600 11.5px/1 var(--tar-sans); letter-spacing: .22em; color: var(--tar-navy); border-bottom: 2px solid var(--tar-red); padding-bottom: 6px; margin-bottom: 16px; }
.tar-hero h1 { font-size: clamp(28px, 3.2vw, 40px); font-weight: 700; color: var(--tar-navy); margin: 0 0 12px; }
:root[data-theme="dark"] .tar-hero h1 { color: var(--tar-navy); }
.tar-sub { font-size: 14.5px; line-height: 2; color: var(--tar-ink2); margin: 0 0 22px; }

.tar-hero-form { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 14px 0 8px; border-top: 1px solid var(--tar-line2); }
.tar-field-label { font-size: 12.5px; font-weight: 700; color: var(--tar-ink3); }
.tar-seg { display: inline-flex; border: 1px solid var(--tar-line); border-radius: 2px; overflow: hidden; }
.tar-seg button { border: 0; border-right: 1px solid var(--tar-line); background: var(--tar-card); color: var(--tar-ink2); padding: 8px 16px; font: 600 12.5px var(--tar-sans); cursor: pointer; }
.tar-seg button:last-child { border-right: 0; }
.tar-seg button:hover { background: var(--tar-navy-soft); }
.tar-seg button.is-on { background: var(--tar-navy); color: #fff; }
:root[data-theme="dark"] .tar-seg button.is-on { color: #101722; }
.tar-btn {
    display: inline-flex; align-items: center; justify-content: center; min-height: 36px;
    padding: 7px 16px; border: 1px solid var(--tar-navy); border-radius: 2px;
    background: var(--tar-card); color: var(--tar-navy); font: 600 12.5px var(--tar-sans);
    cursor: pointer; transition: background .16s, transform .16s; white-space: nowrap;
}
.tar-btn:hover { background: var(--tar-navy-soft); transform: translateY(-1px); }
.tar-btn--main { background: var(--tar-red); border-color: var(--tar-red); color: #fff; padding: 8px 22px; }
.tar-btn--main:hover { background: var(--tar-red); }
:root[data-theme="dark"] .tar-btn--main { color: #1a0d0b; }
.tar-btn--ghost { border-color: var(--tar-line); color: var(--tar-ink2); background: transparent; }
.tar-btn--sm { min-height: 28px; padding: 3px 11px; font-size: 11.5px; }
.tar-form-note { min-height: 18px; margin: 0; font-size: 12px; color: var(--tar-red); }

.tar-hero-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 16px; border-top: 1px solid var(--tar-line2); }
.tar-fact { padding: 12px 12px 2px; border-right: 1px solid var(--tar-line2); min-width: 0; }
.tar-fact:last-child { border-right: 0; }
.tar-fact b { display: block; font: 700 25px/1.2 var(--tar-serif); color: var(--tar-navy); }
.tar-fact span { font-size: 11px; color: var(--tar-ink3); }

.tar-gauge-box { padding: 24px 22px; display: flex; flex-direction: column; align-items: center; justify-content: center; background: var(--tar-card2); }
.tar-gauge-title { font: 700 13px var(--tar-serif); letter-spacing: .16em; color: var(--tar-navy); border-bottom: 1px solid var(--tar-line); padding-bottom: 8px; width: 100%; text-align: center; }
.tar-gauge { width: 100%; max-width: 320px; height: auto; display: block; margin: 8px 0 0; }
.tar-gauge-arc { fill: none; stroke: var(--tar-line); stroke-width: 17; stroke-linecap: butt; }
.tar-gauge-fill { fill: none; stroke: var(--tar-red); stroke-width: 17; stroke-linecap: butt; transition: stroke-dashoffset .5s ease, stroke .3s; }
.tar-gauge-tick { stroke: var(--tar-card); stroke-width: 2; }
.tar-gauge-num { fill: var(--tar-navy); font: 700 42px var(--tar-serif); text-anchor: middle; }
.tar-gauge-label { fill: var(--tar-ink3); font: 11px var(--tar-sans); }
.tar-gauge-foot { font: 600 12.5px var(--tar-serif); color: var(--tar-ink2); border-top: 1px solid var(--tar-line); padding-top: 10px; width: 100%; text-align: center; }

/* ---------- 快捷 ---------- */
.tar-quick { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin: 16px 0 22px; padding: 12px 16px; background: var(--tar-card); border: 1px solid var(--tar-line); border-left: 4px solid var(--tar-gold); }
.tar-quick-label { font-size: 12px; color: var(--tar-ink3); font-weight: 700; margin-right: 4px; }
.tar-chip { border: 1px solid var(--tar-line); background: var(--tar-card2); color: var(--tar-ink2); border-radius: 2px; padding: 5px 13px; font: 600 12px var(--tar-sans); cursor: pointer; }
.tar-chip:hover { border-color: var(--tar-navy); color: var(--tar-navy); }

/* ---------- 主体 ---------- */
.tar-body { display: grid; grid-template-columns: minmax(0, 400px) minmax(0, 1fr); gap: 20px; align-items: start; }
.tar-body > * { min-width: 0; }
.tar-panel, .tar-card, .tar-verdict { background: var(--tar-card); border: 1px solid var(--tar-line); box-shadow: var(--tar-shadow); }
.tar-panel { padding: 20px 22px; }
.tar-panel-head { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 2px solid var(--tar-navy); padding-bottom: 8px; margin-bottom: 10px; }
.tar-panel-head--sub { margin-top: 26px; border-bottom-style: solid; border-bottom-width: 1px; }
.tar-panel-head h2 { font-size: 17px; margin: 0; color: var(--tar-navy); }
.tar-panel-no { font: 11px var(--tar-serif); color: var(--tar-ink3); letter-spacing: .1em; }
.tar-hint { font-size: 12px; line-height: 1.85; color: var(--tar-ink3); margin: 0 0 14px; }
.tar-hint--tight { margin: 10px 0 0; }
.tar-result { display: grid; gap: 16px; }

.tar-usage { display: grid; gap: 0; }
.tar-usage-row { border-bottom: 1px solid var(--tar-line2); padding: 10px 0; }
.tar-usage-top { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 7px; }
.tar-usage-name { font: 700 13px var(--tar-serif); color: var(--tar-ink); }
.tar-usage-w { font: 11px var(--tar-sans); color: var(--tar-ink3); white-space: nowrap; }
.tar-usage-seg { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; }
.tar-usage-seg button { border: 1px solid var(--tar-line); background: var(--tar-card2); color: var(--tar-ink2); border-radius: 2px; padding: 6px 1px; font: 600 10.5px/1.35 var(--tar-sans); cursor: pointer; }
.tar-usage-seg button:hover { border-color: var(--tar-navy); }
.tar-usage-seg button.is-on { background: var(--tar-navy); border-color: var(--tar-navy); color: #fff; }
.tar-usage-seg button.is-on[data-level="3"] { background: var(--tar-red); border-color: var(--tar-red); }
:root[data-theme="dark"] .tar-usage-seg button.is-on { color: #101722; }
.tar-nums { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tar-num span { display: block; font-size: 11.5px; color: var(--tar-ink3); margin-bottom: 5px; }
.tar-num input { width: 100%; box-sizing: border-box; height: 38px; padding: 0 10px; border: 1px solid var(--tar-line); border-radius: 2px; background: var(--tar-card2); color: var(--tar-ink); font: 13px var(--tar-sans); outline: none; }
.tar-num input:focus { border-color: var(--tar-navy); }

.tar-verdict { display: flex; align-items: center; gap: 18px; padding: 18px 20px; border-left: 4px solid var(--tar-line); }
.tar-verdict.is-high { border-left-color: var(--tar-red); }
.tar-verdict.is-mid { border-left-color: var(--tar-gold); }
.tar-verdict.is-low { border-left-color: var(--tar-green); }
.tar-seal { width: 58px; height: 58px; flex: 0 0 auto; border: 2.5px double var(--tar-red); border-radius: 50%; display: grid; place-items: center; font: 700 22px var(--tar-serif); color: var(--tar-red); transform: rotate(-9deg); }
.tar-verdict.is-mid .tar-seal { border-color: var(--tar-gold); color: var(--tar-gold); }
.tar-verdict.is-low .tar-seal { border-color: var(--tar-green); color: var(--tar-green); }
.tar-verdict-copy { min-width: 0; }
.tar-verdict-tag { display: inline-block; font-size: 11px; letter-spacing: .08em; color: var(--tar-navy); background: var(--tar-navy-soft); padding: 2px 9px; border-radius: 2px; margin-bottom: 6px; }
.tar-verdict-copy h2 { font-size: 17px; margin: 0 0 5px; }
.tar-verdict-copy p { margin: 0; font-size: 12.5px; line-height: 1.85; color: var(--tar-ink2); }

.tar-card { padding: 17px 20px; }
.tar-card-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; border-bottom: 1px solid var(--tar-line2); padding-bottom: 10px; margin-bottom: 12px; }
.tar-card-head h2 { font-size: 16px; margin: 0; color: var(--tar-navy); }
.tar-mini { font-size: 11px; color: var(--tar-ink3); white-space: nowrap; }
.tar-actions { display: grid; gap: 8px; }
.tar-action { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 10px; padding: 10px 12px; border: 1px solid var(--tar-line); background: var(--tar-card2); }
.tar-action-no { font: 700 14px var(--tar-serif); color: var(--tar-red); }
.tar-action b { display: block; font: 700 13px var(--tar-serif); color: var(--tar-ink); }
.tar-action p { margin: 3px 0 0; font-size: 12px; line-height: 1.8; color: var(--tar-ink2); }
.tar-empty { font-size: 12.5px; color: var(--tar-ink3); margin: 0; }
.tar-table-scroll { overflow-x: auto; }
.tar-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.tar-table th, .tar-table td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--tar-line2); vertical-align: top; }
.tar-table th { font: 700 11.5px var(--tar-serif); color: var(--tar-ink3); white-space: nowrap; }
.tar-table td { color: var(--tar-ink2); line-height: 1.7; }
.tar-table .num { text-align: right; font-family: var(--tar-serif); font-size: 14px; color: var(--tar-navy); }
.tar-table tr.is-current { background: var(--tar-navy-soft); }
.tar-band-name { font-weight: 700; color: var(--tar-ink); white-space: nowrap; }
.tar-footnote { font-size: 11px; color: var(--tar-ink3); margin: 10px 0 0; line-height: 1.75; }
.tar-del { border: 0; background: transparent; color: var(--tar-red); cursor: pointer; font: 600 12px var(--tar-sans); padding: 2px 6px; }
.tar-statement { width: 100%; box-sizing: border-box; resize: vertical; min-height: 120px; border: 1px solid var(--tar-line); border-radius: 2px; background: var(--tar-card2); color: var(--tar-ink); font: 12.5px/1.95 var(--tar-sans); padding: 11px 12px; outline: none; }
.tar-statement:focus { border-color: var(--tar-navy); }
.tar-toolbar { display: flex; flex-wrap: wrap; gap: 9px; align-items: center; }
.tar-local { margin-left: auto; font-size: 11.5px; color: var(--tar-ink3); }

/* ---------- 浮层 ---------- */
.tar-modal { position: fixed; inset: 0; z-index: 900; display: flex; align-items: center; justify-content: center; background: rgba(24, 24, 30, .58); padding: 20px; }
.tar-modal[hidden] { display: none !important; }
.tar-sheet { width: min(520px, 100%); background: var(--tar-card); border: 1px solid var(--tar-line); border-top: 4px double var(--tar-navy); box-shadow: var(--tar-shadow); padding: 24px 26px; }
.tar-sheet h3 { font-size: 18px; margin: 0 0 8px; color: var(--tar-navy); }
.tar-sheet p { font-size: 12.5px; color: var(--tar-ink2); line-height: 1.85; margin: 0 0 14px; }
.tar-sheet-code { display: block; word-break: break-all; background: var(--tar-card2); border: 1px solid var(--tar-line); padding: 10px 11px; font: 11px/1.7 Consolas, monospace; color: var(--tar-navy); max-height: 110px; overflow: auto; }
.tar-sheet-actions { display: flex; gap: 9px; margin-top: 16px; }
.tar-toast { position: fixed; left: 50%; bottom: 30px; transform: translate(-50%, 12px); z-index: 950; background: var(--tar-navy); color: #fff; border-radius: 2px; padding: 9px 18px; font-size: 12.5px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; }
.tar-toast.is-on { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 980px) {
    .tar-hero, .tar-body { grid-template-columns: minmax(0, 1fr); }
    .tar-hero-copy { border-right: 0; border-bottom: 1px double var(--tar-line); }
    .tar-gauge-box { padding: 16px; }
    .tar-local { margin-left: 0; width: 100%; }
}
@media (max-width: 600px) {
    .tar-wrap { padding: 0 14px; }
    .tar-hero-copy, .tar-panel, .tar-card, .tar-verdict { padding: 15px 14px; }
    .tar-hero h1 { font-size: 26px; }
    .tar-sub { font-size: 13px; }
    .tar-hero-form { flex-direction: column; align-items: stretch; }
    .tar-seg { width: 100%; }
    .tar-seg button { flex: 1 1 auto; }
    .tar-btn--main { width: 100%; }
    .tar-fact b { font-size: 20px; }
    .tar-usage-seg button { font-size: 9.5px; }
    .tar-table { min-width: 0; font-size: 11px; }
    .tar-table th, .tar-table td { padding: 6px 4px; }
}
@media print {
    .tar-page { background: #fff; }
    .tar-hero-form, .tar-quick, .tar-toolbar, .tar-modal, .tar-toast, .tskb { display: none !important; }
    .tar-body { grid-template-columns: 1fr; }
    .tar-panel, .tar-card, .tar-verdict, .tar-hero { box-shadow: none; break-inside: avoid; }
}